there is a lot of nonsense, bad science, voodoo science, pathological science, nonscience and plane oldonsense t is all over the place. most of the stuff we hear is in the true. unfortunately our brains evolve to assume that most of the patterns we see are true. whatever we see and hear especially on television f it's visual, emotionally salient we hook on it and say must be true, i heard it. >> if it rhymes, it is probably true. is that the pattern we perceive that pattern. >> correct. >> stephen: if the glove does not fit, you must acquit. that is how we knew that juice was innocent. >> yes so here's how this -- here is how this works. so imagine you are a homidid on the plains of africa and you hear a russell in the grass. is it a dangerous predator or just the wind. >> stephen: it's a snake, kill it. >> that's right, absolutely right because if you assume it is just the wind, you are lunch. >> stephen: right. >> are you likely, right. >> stephen: it's not the wind t is a snake or a tiger. >> most of the patterns we find -- it is very dangerous. and that is where we volume of the. >>